Final answer:
The C-17 Globemaster III's main landing gear placement and width are designed for aircraft balance and stability, and exact measurements are found in technical orders or maintenance manuals.
Step-by-step explanation:
The C-17 Globemaster III is a large military transport aircraft. The positioning and dimensions of its landing gear are specific to the aircraft's design for balance, structural integrity, and performance requirements. However, specific figures such as how far behind the pilots the main gear is placed, or the exact width of the main gear, require detailed technical documentation from the manufacturer or the military.
Generally, the main landing gear of a large aircraft like the C-17 is located near the aircraft's center of gravity, to ensure proper weight distribution during landing, takeoff, and taxi operations. The width of the gear is also designed to provide stability while the aircraft is on the ground.
Without access to the specific technical measurements, it's important to refer to the aircraft's technical orders or maintenance manuals that are provided to authorized personnel. These documents would contain precise measurements and specifications relating to the aircraft's components, such as the main landing gear positioning and width.